Update changelog.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3552

ChangeLog

@@ -1,3 +1,69 @@
+0.74
+  - Several small game specific fixes/hacks/support. (Offensive,
+    Roadhog, GTA installer, Kingdom O' Magic soundcard detection, 
+    Pirate booter, armored fist installer)
+  - Add the S3-specific 640x480 256 color mode. Fixes regression in "Wooden 
+    Ships and Iron Men" and "I Have No Mouth  And I Must Scream".
+  - Fix a stack overflow that could crash DOSBox.
+  - Add fake microphone input. (Fixes Talking Parrot)
+  - Modify adlib turn off code, so that it doesn't turn off in 
+    cases where the same sound is repeated over and over again.
+  - Several small fixes to the CDROM audio code. (HOMM2, Redneck 
+    Rampage and others)
+  - Several improvements to the CDROM emulation code. (fixes Alpha
+    Storm and  GT Racing 97)
+  - Some small cpu fixes that might fix something.
+  - Handle opcode 0xff subcode 7 as invalid instruction, fixes dif-2 & others.
+  - Some hercules fixes (Testdrive)
+  - Improve support for blanked parts that wrap around to the start of
+    the screen. (Fixes Magic Circle demo and Sid&Al)
+  - Remove old opl cores as the new ones seem work very nice.
+  - Modify movie recording code so that the movies aren't corrupt when
+    you exit dosbox without stopping the movie.
+  - Change RGB3x scaler to look more pretty.
+  - Improve initial register values compatility of the GUS.
+  - Change render preferences a bit to be more compatible with windows 7.
+  - Add DOS fixes to terminate program. (Fixes fortune teller) 
+  - Add FFREEP. (Fixes trucks)
+  - Improve FPU ST80 in C mode when writing zero. (Fixes antigok)
+  - Add special int10 scanline function. (Fixes mz700 and probably lots
+    of games that mess with them)
+  - Fix scrolling in rarely used video modes. (Fixes Orphee)
+  - Modify game specific hacks a bit so that Kick off 3 works again.
+  - Lots of fixes to the INT10 video parameter table. (Seven spirits 
+    of ra and others)
+  - Several small DOS fixes.
+  - Some UMB related fixes. ( The Legacy without umb)
+  - Fix version number of DSP for SB 1.5. (fixes a few games)
+  - Several vga emulation improvements (Allertone football manager)
+  - Some tandy fixes. (mech warrior)
+  - Small improvements and fixes to the OPL emulation.
+  - Add low Level tandy DAC emulation.
+  - Some EMS fixes. (Fixes Mortal Kombat and others)
+  - Change SoundBlaster DSP reset mechanism, add sb irq acknowledge logic
+    (fixes stmik-based applications).
+  - Some interrupt pointer location modifications. (fixes tinker tales)
+  - Some fixes to the BOOT code. (fixes last mission)
+  - Respect write-only. (fixes champions of zulala)
+  - Some RTC fix. (Fixes Tully Bodine and others)
+  - Improve mouse emulation to work better with Water World.
+  - Hopefully fix the translation of the configuration file.
+  - Speed up and fixes for the recompiler core. (pitfall2 pcjr)
+  - Change memory start location. (Fixes 7th Guest installer)
+  - Several fixes to the BAT files handling. (Shift and 
+    use the typed first %0 instead of the parsed %0)
+  - Improve file redirection and redirected line ends. (Fixes 
+    Phantasmagoria 2 DOS installer)
+  - Fix compilation with new MAC os X version.
+  - Add 16C550A FIFO support to the serial port emulation.
+  - Improve modem emulation to get higher speeds.
+  - Change default samplerates to 44100, so that hopefully certain 
+    soundcards produce more fluent sound playback.
+  - Add some rarely used, but for some games critical flags to 
+    the internal commands.
+  - Improve internal timing with repeatings timers (especially with 
+    the dynamic core).
+
 0.73
   - Add two new opl2+opl3 emulators. (better speed, different implementation
     approach)